11.1 Learning Objectives

After completing this lab, you should be able to

  • Produce and/or identify appropriate effect sizes in R Commander and SPSS
  • Interpret effect sizes
  • Report the effect sizes in APA style

Before you begin, make sure you understand the following concepts from the lecture portion of the course

  • Appropriate effect sizes for each type of analysis we have covered so far in the lab
  • The advantages of including effect sizes in your interpretation and reporting of findings

This lab will require you to load data into R Commander and SPSS. You can review this skill in the videos on R Commander basics (beginning at 3:32) and SPSS basics (beginning at 0:48).

It will also draw on the following analyses conducted in previous labs:

For each analysis, we will be using the same dataset as we did in the relevant previous lab.